[G guardian] (Usable when both fighters' vanguards are grade 3 or greater, and the number of face up G guardians in your G zone is three or less)-Opponent Turn's Guard Step-[Choose a card with "Heal" from your hand, and discard it] Call this card to your (GC) from face down.[AUTO]:When this unit is placed on (GC), you may choose one of your grade 1 or greater rear-guards, and you may return it to your deck. If you do, search your deck for up to one grade 0 card, call it to (RC), and shuffle your deck. If you called a card, this unit gets [Shield]+10000 until end of that battle.